Some notables though are:
1. Warrior tanks charging in on Spirit Kings (luckily that seems to have stopped now).
2. Starting the WoTE encounter with only one tank in the group.
3. Some idiot stepping in the purple on Garalon all the time.
4. When the tank doesn't turn Tsulong and half the raid gets breathed on.
5. People not stacking on Unseen Strike on Blade Lord. We lost 3 healers this week (me included) due to that.

Wiping on platform 4 Madness of Deathwing LFR, because people refuse to single-target DPS down the orange tentacles. So many of these.
90% of Ultraxion platform covered in purple fire, as shown on one screenie. Also tanks ALWAYS dying to Fading Light at some point, so I can't test my tunnelvision DPS because boss aggro'es on highest DPS (me)
Killing amalgamation on Spine below 9 stack, because STOP DPS is so hard. Stretching out the fight to 10-15 minutes.
Will of the Emperor wipe because some idiot starts the encounter with one tank in group (the other left after Elegon)
17 minute-long torture on Tsulong, because boss actually receives damage on Day phase, and enters Night with higher HP than it had. Dispeling is hard.
Same on Protectors with people not moving boss from healing pool, thus I'm doing 100k dps, trying my best with several other great DPSers in group but the boss is on...100% hp!
And the gem of T14 LFR - Feng phase 3, pretty much every group gets cut down to 5-12 people because idiots run in with the debuff on, killing most of the raid. If we're lucky and enough healers survive, it's a kill, with half the raid dead.

Downing the boss? We wiped multiple times on the trash. TO THE FIRST BOSS.

Man that trash.

I've wiped on that trash in LFR more times than I've wiped on the bosses. Last week, I did HoF late in the week on an alt - we wiped 4 times to trash before the first boss, and then wiped to an accidental pull on the first boss when 12 people were still dead.

From that point, we proceeded to effortlessly one shot everything else through Garalon.

I think the trash at the start of HoF might just be too hard for a disorganized group. Too many ways for tanks to easily die, and when the trash pulls are that large, that leads to a very fast wipe.

Maybe scale down the number of mobs in the pull to the number there are on 10, and buff the HP a little to make up for it. Would make the pulls take the same amount of time while making it less likely for the raid to explode on a tank death.

Also tanks ALWAYS dying to Fading Light at some point, so I can't test my tunnelvision DPS because boss aggro'es on highest DPS (me)

The ability to quickly, or preemptively, dump threat. But also, I remember this warrior tank saying he could tank Ultraxion alone. He died once quickly being ressed, some of our top DPS died from having aggro as well. He still insisted he could do it. His (?) name was "tankgoddess", or something like that. Which made it more epic.

Killing amalgamation on Spine below 9 stack, because STOP DPS is so hard. Stretching out the fight to 10-15 minutes.

This was a popular troll, yes.

17 minute-long torture on Tsulong, because boss actually receives damage on Day phase, and enters Night with higher HP than it had. Dispeling is hard.

On my DK tank back in Cata.
Joined the Fall of Deathwing LFR. After the trash was over after 10minutes. (ye we made it that far) Since we had good healers and I could taunt! No one wrote anything in the /raid chat during the time of the trash. I did not have my recount on my screen, so when I toggled it to my screen, I saw that I was doing 75~ % of the dmg. With that said the rogue who had just the ilvl req for getting in pulles the boss, after I and the healers told him not to. The boss enrages at 70% because we had tree people doing 30k+ dps.(And one was me) all the other dps'ers were afk.. I left without a blink, such a waste of time..

That trash is actually much more difficult than the first and second bosses. Really needs an adjustment because it is brutal.

Or the tank needs to mark for CC.

"There is a pervasive myth that making content hard will induce players to rise to the occasion. We find the opposite. " -- Ghostcrawler
"Almost every time I have gotten to know a critic personally, they keep up with the criticism but lose the venom." -- Ghostcrawler
I hate these casual Fridays ruining it for real Fridays.

"There is a pervasive myth that making content hard will induce players to rise to the occasion. We find the opposite. " -- Ghostcrawler
"Almost every time I have gotten to know a critic personally, they keep up with the criticism but lose the venom." -- Ghostcrawler
I hate these casual Fridays ruining it for real Fridays.

while i had not many amazingly bad ones, just the regular bad groups.
i did notice a decline in how well a LFR clear went, main reason is that many raiders who contributed a lot no longer need stuff from LFR since they got full normal/heroic items instead simply stop running LFR. i know this is the truth for me and some friends/guildies.

I've wiped on that trash in LFR more times than I've wiped on the bosses. Last week, I did HoF late in the week on an alt - we wiped 4 times to trash before the first boss, and then wiped to an accidental pull on the first boss when 12 people were still dead.

From that point, we proceeded to effortlessly one shot everything else through Garalon.

I think the trash at the start of HoF might just be too hard for a disorganized group. Too many ways for tanks to easily die, and when the trash pulls are that large, that leads to a very fast wipe.

Maybe scale down the number of mobs in the pull to the number there are on 10, and buff the HP a little to make up for it. Would make the pulls take the same amount of time while making it less likely for the raid to explode on a tank death.